ask your doctor about novolog mix 70/30 flexpen, covered by 90% of insurance plans, including medicare. find your co-pay at myflexpen.com. i'm craig melvin in for tamron hall. the "news nation" is following what's one of the worst weeks yet for mitt romney. another round of discouraging polling today for the republican nominee capping of a week of discouraging polling. romney in an afternoon event in pennsylvania asked for help to